Concealed hinge



CONCEALED HINGE Dec. 14, 1937.

Filed Feb. 20, 1936 INVENTOR JOSEPH 5055 'ATToRN Patented Dec. 14, 1937UNITED: STATES PATENT orrlca 14 Claim.

This invention relates to concealed hinges and particularly to hinges ofthis class which are commonly known as hinges of the hook arm type; andthe object of the invention is to pro- 6 vide a hinge of the classspecified, the hook arm of which consists of main and supplemental partswhich are collectively and independently movable with respect to thebutt housing, and whereby the supplemental part will permit a greaterswinging movement of the door by reason of the independent movement ofsaid part with respect to the main part; a further object being toprovide an independent mounting of the supp emental hook arm part inconnection with the butt housing or the @aced bearing plates thereof andto guide said mounting in the diil'erent movements of the supplementalpart; a further object being to provide means for detachably couplingthe supplemental hook arm part to the main hook arm part to providequick and simple attachment and detachment of the door with respect to adoor frame: a still further object being to provide a hinge of the classdescribed, the separate parts of which are composed of sheet metalwhereby the hinge may be constructed economically and thereby sold at areasonable price; a still further object being to provide thesupplemental hook arm part with a hood portion which partially concealsboth main and supplemental hook arm parts, and at the same time,produces a neat and finished appearance to the hook arm structure of thehinge; and withfthese and other objects in view, the invention consistsin a hinge of the class and'for the purpose specified, which is simplein construction, efliclent in use and which is constructedas-ihereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying' drawr ing forms a part, in which the separateparts'of I my improvement are designated by suitable refercharacters ineach of the 'views,-an'd", in Tfwliich:v

' lthereior in dot and dash lines." I

- '2 is a transverse sectional viewroi the hingeshown in Fig. 1 in apartially ep npos1-' 3, A I g. 1 isa plan view of a hinge madeaccordgfing'jto my invention showing the same in closed F I: ;positionand partially indicating the supports (Cl. 16-168) Fig. 3 with parts ofthe construction broken away.

The hinge forming the subject matter of my invention is of the concealedhook arm type and consists of a housing butt part 5 and a swinging 5hook arm butt part 6 consisting, in the construction shown, of a mainarm 1 and a supplemental arm 8. The housing butt part 5 in theconstruction shown consists of a facing plate 9 of sheet metal which hasan angularly extending flange 10 I ii) at one side thereof.

Centrally oi the plate is a large opemng l I, upper and lower walls ofwhich are provided with notches or cut-outs l2 adjacent the flanged sideedge of said plate. Welded or otherwise secured 15 to the inner surfaceof the .plate 9 are substantially L-shaped upper and lower bearingplates l3, each consistingv of a part I arranged directly upon the plate9 and secured thereto and an angularly extending as well as oifset platel5. Op- 20 posed surfaces of the plates I 5 are arranged in alinementwith the upper and lower edges of the apertures II as clearly indicatedin Fig. 4 of the drawing.

In Fig; 1 of the drawing, I haveindicated in 25 dot and dash lines atiii the door frame in connection with which the butt 5 is mounted. AtI1,

I have indicated in dot and dash lines a part of the door in connectionwith which the supplemental arm 8 01 the butt part 6 is mounted. It 0will appear upon a consideration of Fig. 1 of the drawing that thebearing plates l5 extend into the stationary support l6. Apertures areformed in the offset corner lid of said plates to receive a pintle pinit employed for pivotally mounting 3 the main arm part i in connectionwith the butt housing. i Said part I is formed from a strip or sheet ofmetaLcne end of which is curled to form a substantially cylindricalbearing 20 in connection with which a headed pintle pin 2| is detach- 40ably mounted.

The supplemental arm 8 is also formed from sheet metal and the endportion 22 of this am is substantially of the same width as thecorresponding portion of the arm 1 but of different contour and the part22 terminates at its free end in a curved knuckle 23 in which is secureda .pin 24 which projects beyond the upper and lower surfaces of theknuckle 23 to extend into and through bearing plates l5 or guidechannels or I apertures 25 formed therein. The inner end por- Fig-3 is atransverse sectional'view substantially'on the line'3-3 of Fig. 4'showingthe hinge inaiullyopen position; and, i

' Fig.1 is a face view of the hinge asshowniin' tion 25a of theapertures 25 are on an arc, the axis of which constitutes the center ofthe pin i8,

whereas the end portions 25b of the apertures 25 are on an arc, the axisof which is the center of the pin 2| when the latter is in the pofltionassumed when the main arm I is in its fully open position so as topermit the pin 24 to swing on the axis 2| in the movement of thesupplemental arm 8 independent of the arm 1. -From a point beyond thecorner 21 of said arm, the angularlyextendingpartflofthearmtisof greaterwidth than'g'the end portion 22, and also of greater width than the armI as may be seen at the right of Fig. 4 of the drawing. The free end ofsaid part 28 is' cut out centrally as indicated at 24 to receive thecylindrical bearing 20 of the part I.

At opposite sides of the cut-out 28, or in other words, above and belowsaid cut-out, the ends of the part 2 are curled to form pintle bearings29 arranged directly above and below the bearing 24 and through whichthe headed pin 2| passes so as to provide the hinge mounting between themain and supplemental arms I and 4 to provide the independent swingingmovement of the supplemental arm 8 from the position shown in Fig. 2 tothe position shown in Fig. 3 and vice versa in the opening and closingmovement of the 1 1 8 I preferably employ anti-frictional sleeves on theprotruding ends of the pin 24 to relieve the frictional engagement uponthe surfaces of the apertures 25. It will be understood that the outerend'portion of the ends 25b of said aper- 1 tures extend through thebearing plates and register with the notches or recesses l2 in the upperand lower walls of the plate 9 so that when the pin 2| is removed, thepin 24 including the bearings 30 thereon may be drawn outwardly throughthe notches l2. It will appear, however, that when the parts areassembled, the side walls |2a of the notches I2 act as stops limitingfurther outward movement of the arm I when the arms 1 and 4 are coupledtogether by the pins 2|.

I also preferably employ a shell or hood portion 2| for concealing orpartially concealing the arms I and 8 as well as to reinforce andstrengthen the arm structure the hood portion 3| where it abuts the arm8 being welded or otherwise secured thereto. This'hood consists of acurved wall portion 42 which is of a contour different from that of thepart 22 upon which it is arranged. This wall terminates at one endadjacent the corner 21 and at its other end in a part 42 which extendsaround the bearing or knuckle 23 as clearly seen in Fig. 2 of thedrawing. The upper and lower edges of the hood 3| are extended to formtop and bottomcover plates 24 which are of the same contour. Theseplates extend over the upper and lower edges of the arms I and I asclearly seen in Figs. 1 and 3 of the drawing. The pin 24 passes throughsaid top and bottom plates 34 where they are arranged outwardly of theupper and lower surfaces of the knuckle 22. The end portion 24a of theplates 44 are arrangedangularlytotheinnersurfacesofthepart 26 of the arm8 and terminate short of the bearingsuasmaybeseeninFigilofthedraw- Thedesign or curvature of the hook arms may be varied to suit the differentinstallation requirements, the butt housing being also fashioned to suitthese requirements and also to give the desired throw or swing ofthe'door. This is also true of the form and guidance of the supplementalhook arm which is movable independently of the main arm to give theadded door throw. The disclosure in the accompany ng drawing is onlyillustrative of one method of carrying my invention into effect.

In the accompanying drawing, when the butt parts 5 and 6 are in closedposition, the arms I and l are in their substantially nested positionone within the other and within the hood 4|.

The pin 24 is disposed at the inner end of the parts 25a of theapertures 25. In the operation of opening the door, the arms I and 4will mainabove operation, or, in other words, in closing the door, thearm 8 first moves from the position shown in Fig. 3 to the positionshown in Fig. 2, and then, both arms I and 8 swing inwardly to return tothe position shown in Fig. 1.

The plate portion 26 of the arm I of the hinge will be fashioned tofacilitate attachment to a door by screws, riveting, welding orotherwise. By reason of the detachable pintle 2|, this attachment to thedoor may be more or less permanent because of the detachable mounting ofthe door including the arm 8 with respect to the arm I and the butt 5.The plate 9 including the parts l4 of the L-shaped bearing plates I; maybe fashioned in any desired manner for attachment to thedoor' frame byscrews, bolts or the like.

My improved hinge is designed primarily for use as a'hinge for-motorvehicles but will have its usefulness in any other type of door hanging,especially where the use of concealed hinges is desirable. Byconstructing the several parts of the hinge from sheet metal, the samemay be produced at a very nominal cost and at the same time, a strongand durable hinge is provided.

Having fully described my invention, what v I claim as new and desire tosecure by Letters Patent, is:

1. A concealed hinge of the class described comprising a housing buttpart and a hook arm butt part, said arm being pivotally mounted withinthe housing and adapted to swing inwardly and outwardly with respectthereto on said pivot, said arm including a supplemental am part movablewith and independently of the first named arm, means for guiding thesupplemental arm in the butt-housing in its respective movements, thefree end portions of the first named and supplemental arms havinginterengaging pintle bearings with a commonprising two arms pivotedtogether at one'end portion thereof, the other end of one of said armshaving a fixed pivot in said bearing plates, and the corresponding endofthe other arm and said bearing plates having interengasins, means forguiding said end of the arm in two distinct arcuate paths in theswinging movement of said arms collectively. with respect to the firstnamed prising two arms pivoted together at one end portion thereof, theother end oi one of said arms having a fixed pivot in said bearingplates, the corresponding end of the other arm and said bearing plateshaving interengaging means for guiding said end of the arm in twodistinct arcuate paths in the swinging movement of said armscollectively with respect to the first named butt and during independentmovement of the second named arm with respect to said first named arm,the inter-engaging means between the second named arm'and bearing platescomprising projecting members on said arm. and channels in said bearingplates in which sai projecting members operate.

4. A concealed hinge'o! the class descri one butt of which comprises topand bottom bearing plates, the other butt of the hinge comprising twoarms pivoted together at one end portion thereof, the other end of oneof said arms having a fixed pivot in said bearing plates, thecorresponding end of the other arm and said bearing plates havinginterengaging means for uiding said end of the arm in two distinctarcuate paths in the swinging movement oi said'arms collectively withrespect to the first named butt and during independent movement of thesecond named arm-with respect to said first named arm, the interengagingmeans hetween the second named arm and bearing plates comprisingprojecting members on said arm, channels in said bearing plates in whichsaid projecting members operate, and the second named arm having acurved hood portion ineluding top and bottom walls arranged over upperand lower edges of the first and second named arms.

5. A concealed hinge oi the class described.

. one butt of which comprises top and bottom bearing plates, the otherbutt of the hinge comprising two arms, a pivot coupling said arms at oneend portion thereqi', 'the other end of one of said arms having a fixedpivot in said bearing plates, the corresponding end oi the other arm andsaid bearing plates having interengaging means for guiding: said end oi!the arm in two distinct arcuate paths in the swinging movement of saidarms collectively with respect to the first named butt and duringindependent movement of the second named arm with respect to said firstnamed arm, the inte'rengagi means between the second named arm andbearing plates comprising projecting members on said arm, channels insaid bearing plates in which said projecting members operate, the secondnamed arm having a curved hood portion ineluding top and bottom wallsarranged over upp r and lower edges of the first and second named arms,and means involving the first named pivot and first named means fordetachably mounting the second named arm in connection with said firstnamed arm and said first named butt.

6. In a concealed hinge oi. the class described, a butt housing inconnection with which two hinge members are mounted for independentmovement, said housing comprising a front plate having inwardly.extending and spaced bearing plates arranged in aii'nement with anopening formed in said front plate said bearing plates having anaperture for receiving a fixed pintle for one of said hingemembers,,each of said bearing plates having two differently arcedintercommunicating channels for guiding the other of said hinge membersin its movement relatively to said housing and one of said channelshaving bearing plates having two differently arced intercommunicatingchannels for guiding the other of said hinge members in its movementrelatively to said housing, and the are or curvature of one channel ineach plate being arranged arcuately with respect to the axis of said,pintle apertures.

8. In a concealed hinge of the class described, one of thebutts of saidhinge comprising spaced bearing plates, the other butt consisting oi twohook-shaped arms arranged one outwardly of "the other, means formounting one end 01 the inner armon a fixed pivot in said plates, theother end of said arms having interengaging knuckles arranged on acommon pintle, and means for guiding the other end of the outer arm insaid plates arcuately with respect to the pivot of the first named armin said plates as well as arcuately with respect to the pintle couplingbetween both of said arms. I

9.'A concealed hinge of the class described comprising a butt housingand, two hook arm butt parts, one endof each of said parts having anindependent mounting in the butt' housing, the other end of said partsbeing pivotally coupled together, both parts comprising a substantiallystraight outer portion and a curved inner portion'with the walls of saidportions in substantially parallel relation with respect to each otherwhen said parts are in closed position.

10. A concealed hinge of the class described comprising a butt housingand two hook arm butt parts, one end of each of said parts having anindependent mounting in the butt housing, the other end of said partsbeing pivotally coupled together, both parts comprising a substantiallystraight outer portion and a curved inner por-- tion with the walls ofsaid portions in substan tially, parallel relation with respect to eachother when said parts are in closed position, and one comprising a butthousing and two hook arm butt parts, one end of eachof said parts havingan independent mounting in the butt housing, the other end of said partsbeing pivotally coupled together, both parts comprising a substantiallystraight outer portion and a curved inner portion with the walls 01'said portions insubstantially parallel relation with respect to eachother when said parts arev in closed position, and

12. A concealed hinge o! the class described comprising a housing buttpart and a hook arm butt part, said arm being pivotally mounted withinthe housing and adapted to swing inwardly and outwardly with respectthereto on said pivot, said arm including a supplemental hook-shaped armpart or substantially the same form as the first named arm and normallycovering said first named arm and movable with and independently of saidfirst named arm, and means for guiding the supplemental arm in the butthousing in its respective movements.

13. A concealed hinge ,0! the class described comprising a housing buttpart and a hook arm butt part, said arm being pivotally mounted withinthe housing and adapted to swing inwardly and outwardly with respectthereto on said pivot, said am including a supplemental hook-shaped armpart of substantially the same form as the first named arm and normallycovering said first named arm and movable with and independently or saidfirst named arm, means for guiding the supplemental arm in the butthousing in its respective movements, and the free end portions 01' thefirst named and supplementalarms terminating in interengaging pintlebearings with a common pintle mounted in said hearings to providerelative binge movement between, said arms.

14. A concealed hinge or the class described comprising a housingbuttpart and a hook arm butt part, said arm being pivotally mountedwithin the housing and adapted to swing inwardly -and outwardly withrespect thereto on said pivot,

said arm including a supplemental hook-shaped arm part or substantiallythe same term as the first named arm and normally covering said firstnamed arm and movable with and'independentiy of said first named arm,means for guiding the supplemental arm in the butt'housing in itsrespective movements, the free end portions oi the first named andsupplemental arms terminating in interengaging pintle bearings with acommon pintle mounted in said bearings to providerela-- tive hingemovement between said arms, and the means for guiding the supplementalarm in its movement with respect to said housing comprising a pin on thesupplemental arm extending beyond the upper and lower surfaces thereofand operating in curved channels in the top and bottom of said housing,said channels having two.

difierent axes.

JOSEPH $038.

